Vitamin C Glucoside (Ascorbyl Glucoside)

Known for its affinity with skin and its powerful ability to improve the appearance of skin aging. 10.5% of Pure Vitamin C (L-Ascorbic Acid) is the key ingredient in the Kiehl’s Dermatologist Solutions product Powerful-Strength Line-Reducing Concentrate.

Vitamin C Glucoside (Ascorbyl Glucoside)

Known for its affinity with skin and its powerful ability to improve the appearance of skin aging. 10.5% of Pure Vitamin C (L-Ascorbic Acid) is the key ingredient in the Kiehl’s Dermatologist Solutions product Powerful-Strength Line-Reducing Concentrate.

Rated 1 out of 5 by floridagolfer much better products from Kiehls than this one
UV Guard was too watery and didn't protect well at all. I use Activated Sun Protector, SPF 30 every day and its terrific! I play golf 5 days/week in Florida and this product protects my face, neck extremely well, and is easy to apply. Much better than the UV Guard product.
8/24/16

Rated 1 out of 5 by Looploop Watery Mess
I have used Kiehl products before but I did not like this one. The product is very thin and watery. I found it difficult to put on and my skin would dry up and flake. Given the relatively high price this product has low value.
5/12/16

Rated 5 out of 5 by nford Same product as Super Fluid UV Defense SPF 50+ except before the super fluid got reformulated to be paraben free. I'd suggest use the Super Fluid unless you like the manly packaging of the Facial Fuel UV Guard SPF 50+.
As others have noted, this is very light weight and will matte the skin controlling oil problems. Suggest a sunscreen daily as skin protection against UV rays is the #1 protection against early skin aging.
4/21/16

Rated 5 out of 5 by ArVAFan Good for women, too
I've been using this for a few years now, and it's really the best sunscreen. I run, and go to a lot of baseball games, and it's my go-to sunscreen for both. Goes on smooth, absorbs instantly, protects well. Small bottle travels well, and lasts a whole baseball season. Well worth the price.
2/3/16

Rated 5 out of 5 by FlossAndGoToBedEarly Light but did the job
I used this training for a marathon and saved my face and neck. Lightweight, easy to apply everywhere and didn't have too bad of a SPF scent.
5/27/14

Rated 5 out of 5 by km2266 Light Sunscreen with Great Protection
I have recently began to use the Facial Fuel UV Guard 50+ and am very pleased with the results. It is very light and easy to go on, without feeling greasy. It has not caused any blemishes, like many other sunscreens can. And it just works.
10/7/13

Rated 5 out of 5 by Maneesh Best SPF I've used
This is the best SPF product I've used for my face. I have very sensitive skin prone to breakouts; I've never had any with this product. The texture of the lotion is perfect - it gets on easy and is quickly absorbed into the skin. Unlike other lotions that I've used before, this one does not leave a visible white residue because the skin soaks it up even if you use it over other products like Facial Fuel. For those of you thinking about the price, a bottle lasts a pretty long time (5+ months for me). On really hot days when you're sweating, just be careful not to apply it around your eyes to prevent sweat (and SPF) running into your eyes. Excellent product!
3/10/13

Rated 5 out of 5 by Fahylando IT SIMPLY WORKS!
It simply works! I'm an African American male model with blemish prone skin from acne which causes hyperpigmentation. Since i've been using this product, my existing hypermigmentation has continually faded away gradually with no new hyperpigmentation to follow in other areas.
7/19/12